2022 Corolla Cross HPL PP 0W8 20,080 Mile OCI
- Thread starter DirectRejection
- Start date
AZjeff
$50 Site Donor 2023
Consistent numbers.
Holy smokes! 8.6TBN after 20k! You gonna push it past 20k or did you settle here?
OVERKILL
$100 Site Donor 2021
Technically it's out of grade for a 0W-8, which ends at 6.1cSt, and this oil is 7.1, so depending on the HTHS it's now either a 0W-12 (barely, this ends at 7.1cSt) or 0W-16.
This 0w8 comes with the apt title "PP".
Wow that's great for 20,000 plus miles. I got to admire your intestinal fortitude. 
The oil has a HTHSv of 2 and the oil filter has a 99% efficiency of "only" 30 microns.
So much for that headroom nonsense.
So much for that headroom nonsense.
OW8 ? Is that spec for new Toyotas??
What are you getting at? Other than some oxidative thickening, there’s nothing wrong with the results for this oil in this application.
In fact, the oil is doing exactly as @High Performance Lubricants intended- early in the OCI if this oil was sampled, OP may see a slight drop in VOA viscosity, and then as mileage accumulates there is some thickening. 0.5 ppm Fe/1k miles and all other wear metals nearly half that; OP is likely thrilled with this UOA, as he should be IMO.
report looks good, amazing TBN !
I think for Singer Sewing Machines or Glocks.
So is thus the successor to the M1 Annual /Amsoil Signature Series as far as wear and TBN go? Would the reports reaped even better had a filter been changed or am I looking into it too hard.
I looked on HPL for 0w8, couldn't find it at all. I never heard of a toyota using this spec
Agreed. It is impressive that he ran a 0w8 in a 0w16 application for 20k miles.What are you getting at? Other than some oxidative thickening, there’s nothing wrong with the results for this oil in this application.
In fact, the oil is doing exactly as @High Performance Lubricants intended- early in the OCI if this oil was sampled, OP may see a slight drop in VOA viscosity, and then as mileage accumulates there is some thickening. 0.5 ppm Fe/1k miles and all other wear metals nearly half that; OP is likely thrilled with this UOA, as he should be IMO.
My point was he did it with the (according to some) negative headroom of a HTHSv 2 oil and the far from desirable oil filtering of only 99% at 30 micron.
Btw, be careful about pointing to the UOA since someone will surely request an engine teardown with before and after measurements.
Thank you, I must be blind today aha
I try to police myself to only observing the meaningful data of an OA, the characteristics of the oil itself (along with really excessive iron, potassium, sodium, or fuel). Without trends you can’t make any valid assumptions about wear, and with trends you can only make the assumption if the target engine is comparable to the universal averages to that engine. No wear claims nor tear downs needed!
Thank you for taking a look here, friends.
IMV the OCI could be extended to 30k miles !
The data points to continuing with my current maintenance plan with supreme confidence.
IMV the OCI could be extended to 30k miles !
The data points to continuing with my current maintenance plan with supreme confidence.
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